| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 봄 (04/12 ~ 04/13, 서울대학교) |
| 권호 | 27권 1호, p.199 |
| 발표분야 | 고분자 가공/블렌드 |
| 제목 | Synthesis and Characterization of Waterborne Polyurethane by Polyurethane/Acrylate IPN |
| 초록 | Waterborne polyurethanes (PUs) can be formulated with little or no solvent. So they have environmentally friendly properties. But their mechanical properties are generally inferior to those of solvent-based PUs. A number of methods to modify the waterborne PUs have been suggested and some of them put into practices. In this study, to improve mechanical, thermal and adhesive properties of waterborne PUs, we introduced acrylate monomers. Aqueous PUs were prepared from poly(tetramethylene adipate) glycol(PTAd), 4,4'-diphenylmethane diisocyanate(MDI), 1,4-butane diol(BD), dimethylolpropionic acid(DMPA), triethylamine(TEA) by prepolymer mixing process and to make acrylate-terminated PUs, we used 2-hydroxyethyl acrylate(HEA) and 2-hydroxyethyl methacrylate(HEMA). And then we fed acrylate monomers (methyl acrylate, ethyl acrylate, butyl acrylate) into PU particles and polymerized with initiator and crosslinking agent. So we prepared PU/Acrylate interpenatrating polymer network (IPN) and studied their mechanical, thermal and adhesive properties with dynamic mechanical thermal analyzer (DMTA), differential scanning calorimetry(DSC), universal test machine(UTM), FT-IR and so on. |
| 저자 | 방주현, 유상문, 김병규 |
| 소속 | 부산대 |
| 키워드 | |
